Multi-Area RF Sensing Using Adjacent-Node Preconfiguration
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Solution Overview
Problem
Existing RF-based sensing systems face challenges in achieving improved detection performance and reduced latency across multiple sensing areas, particularly when events in one area are expected to occur in spatially adjacent areas.
Innovation Solution
An RF system with multiple nodes configured to perform RF-based sensing in multiple areas, where findings from one sensing area are used to optimize the configuration of nodes in adjacent areas, employing single-channel or multi-channel communication technologies based on confidence levels and environmental characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RF-based sensing is performed independently in each sensing area, then system complexity is reduced and ease of operation is improved, but detection performance and latency are worsened when events occur in spatially adjacent areas
Solution Approach 1:
The system performs preliminary RF-based sensing in a first sensing area before an event occurs, obtains findings from this initial sensing, and uses these findings to configure the second group of nodes for the second sensing area. This preliminary action in the first area enables optimized detection in the adjacent second area, improving overall detection performance while maintaining manageable system complexity through staged configuration.
2Reliability
If findings from the first sensing area are used to configure the second group of nodes, then detection performance is improved, but system complexity and coordination overhead increase
Solution Approach 1:
The system obtains findings from RF-based sensing performed in the first sensing area and uses this feedback information to configure the second group of nodes for sensing in the second sensing area. This feedback mechanism allows the system to adaptively optimize detection performance in adjacent areas by leveraging information from previously sensed areas, while the automated nature of the feedback loop minimizes manual coordination overhead.
3Loss of time
If multiple groups of nodes sense in spatially adjacent areas with coordinated configuration, then latency is reduced for tracking moving events, but system complexity increases
Solution Approach 1:
The system configures the second group of nodes in advance based on findings from the first sensing area, so that when an event is detected in the first area and is expected to occur in the adjacent second area, the second group is already optimized and ready for immediate detection. This preliminary configuration reduces latency for tracking moving events across spatially adjacent areas while avoiding continuous reconfiguration overhead.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances detection performance and reduces latency by adaptively configuring nodes for improved sensing in adjacent areas, leveraging findings from initial sensing events to optimize settings and technologies.
Implementation Method 1
A first group of nodes including at least two of the multiple nodes performs RF-based sensing in a first sensing area for detecting a first sensing event
Implementation Method 2
A second group of nodes including at least two of the multiple nodes is configured for performing RF-based sensing in a second sensing area for detecting a second sensing event
Data Source
AI summary
The present invention relates to performing radio frequency based sensing in multiple sensing areas (50, 60) by multiple nodes (26, 28, 30, 38, 40, 42) located at different locations. A first group (25) of nodes includes at least two of the multiple nodes (26, 28, 30) and performs radio frequency based sensing in a first sensing area (50) for detecting a first sensing event. A second group (25′) of nodes including at least two of the multiple nodes (38, 40, 42) is configured for performing radio frequency based sensing in a second sensing area (60) for detecting a second sensing event based on findings obtained by performing radio frequency based sensing in the first sensing area (50). The nodes (26, 28, 30, 38, 40, 42) may perform radio frequency based sensing based on multiple communication technologies (34). The findings may include which communication technology allows confidently detecting a sensing event.